Description
Quick answer: black clarias catfish (Clarias batrachus) are air breathing catfish sold at 4 to 7.5 cm. They are hardy and fast growing, but Clarias species are restricted in several markets, including parts of the United States, so destination rules are confirmed before any order is accepted.
This is a fish that has to be handled carefully for reasons that have nothing to do with fishkeeping skill. Clarias batrachus is a robust, air breathing species that survives out of water, moves across wet ground and establishes in places it does not belong. That biology is why several governments regulate it.
Identification
A long, cylindrical body with a mottled dark olive to black pattern, a flat head, four pairs of barbels and a long dorsal fin running almost to the tail. The oversized accessory breathing organ lets it gulp air at the surface, which is the behaviour most keepers notice first.
Understanding the restriction
Rules vary by country and, in the United States, by state and federal listing. Some destinations prohibit import, some prohibit possession and some allow trade with permits. We do not treat a catalogue listing as permission to ship. Before quoting we confirm the species, the destination and the documentation that applies.
If a destination prohibits the species, the honest answer is no. Buyers should expect that answer and should not read it as a negotiation position.
Water parameters
24 to 28 degrees Celsius, pH 6.5 to 8.0, and a tank with a secure lid. They are tolerant of poor water but that tolerance is not a reason to provide it. A large tank and strong filtration are still required.
Diet
Omnivorous and enthusiastic. Pellets, frozen food, meaty pieces and vegetable matter. They grow quickly on a generous diet and will eat anything that fits in the mouth.
Packing and handling
Where trade is permitted, fish are fasted, packed in oxygen and shipped at moderate density. They are tough in transit, which is part of the problem the regulations exist to manage.
Ordering
Send the destination and quantity first. We confirm whether the species can legally be supplied to that market, then discuss sizes, packing and delivery.
Frequently asked questions
Can you ship black clarias to the USA?
Only where the destination rules allow it. Clarias batrachus is restricted in parts of the United States, so the destination is checked first.
Why is this fish regulated?
It breathes air, survives out of water and can establish in the wild, which makes it an invasive risk in warm regions.
How big does it grow?
Well past 30 cm. It is not a small aquarium fish despite the juvenile size.
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